Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 74 + 79 by rounding each number to the nearest 10: ______
- Estimate 26 + 62 by rounding each number to the nearest 10: ______
- Estimate 82 + 80 by rounding each number to the nearest 10: ______
- Estimate 55 + 31 by rounding each number to the nearest 10: ______
- Estimate 37 − 44 by rounding each number to the nearest 10: ______
- Estimate 89 − 40 by rounding each number to the nearest 10: ______
- Estimate 76 + 24 by rounding each number to the nearest 10: ______
- Estimate 49 − 27 by rounding each number to the nearest 10: ______
- Estimate 49 − 62 by rounding each number to the nearest 10: ______
- Estimate 38 − 39 by rounding each number to the nearest 10: ______
- Estimate 75 + 50 by rounding each number to the nearest 10: ______
- Estimate 36 + 56 by rounding each number to the nearest 10: ______
- Estimate 84 + 63 by rounding each number to the nearest 10: ______
- Estimate 40 + 65 by rounding each number to the nearest 10: ______
- Estimate 42 − 63 by rounding each number to the nearest 10: ______
- Estimate 80 − 33 by rounding each number to the nearest 10: ______
- Estimate 83 − 53 by rounding each number to the nearest 10: ______
- Estimate 79 + 60 by rounding each number to the nearest 10: ______
- Estimate 86 + 42 by rounding each number to the nearest 10: ______
- Estimate 68 + 51 by rounding each number to the nearest 10: ______